Multiple choice

An average daily wages of $10$ workers in a factory '$A$' is Rs. $30$ and an average daily wages of $20$ workers in a factory '$B$' is Rs. $15$. Find the average daily wages of all workers of both the factories.

  1. $20$
  2. $40$
  3. $10$
  4. $15$
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A Correct answer
Explanation

The total wages for factory A is 10 * 30 = 300, and for factory B is 20 * 15 = 300. The combined average is the total wages divided by the total number of workers: (300 + 300) / (10 + 20) = 600 / 30 = 20.

AI explanation

Using the weighted average method, the total wages for factory A is 10 workers multiplied by Rs 30 = Rs 300, and the total wages for factory B is 20 workers multiplied by Rs 15 = Rs 300. The combined total wages for all 30 workers is Rs 300 + Rs 300 = Rs 600. Dividing this total by 30 gives the average daily wage of Rs 20.

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